Answer in brief
CVE-2026-52964 records a Unknown severity vulnerability in ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ff49d1df79aef7580fe3ac99d17c3f886655d080 <fafc97bd01e4c737eaeafadfdadb1af4bbfa7307 || >=ff49d1df79aef7580fe3ac99d17c3f886655d080 <a310b4bebda5e4a1b26520c0cc5145ccd6d617e2 || >=ff49d1df79aef7580fe3ac99d17c3f886655d080 <f9c184a83574549a36ea69b755f650e57d164c78 || >=ff49d1df79aef7580fe3ac99d17c3f886655d080 <17e76b19de1aff5ff4de64d269290bd1b07a01d3 || >=ff49d1df79aef7580fe3ac99d17c3f886655d080 <918be519c7876329e1b6e2ea1c59f0b75e792dca | fafc97bd01e4c737eaeafadfdadb1af4bbfa7307, a310b4bebda5e4a1b26520c0cc5145ccd6d617e2, f9c184a83574549a36ea69b755f650e57d164c78, 17e76b19de1aff5ff4de64d269290bd1b07a01d3, 918be519c7876329e1b6e2ea1c59f0b75e792dca |
| Linux/Linuxgeneric | 6.5 | Not reported |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans The USB MIDI 2.0 endpoint parser has the same descriptor walking pattern as the legacy MIDI parser. It validates bLength against bNumGrpTrmBlock before reading baAssoGrpTrmBlkID[], but not against the remaining bytes in the endpoint-extra scan. A malformed device can therefore make later baAssoGrpTrmBlkID[] reads consume bytes past the walked descriptor. Reject zero-length and overlong descriptors while walking endpoint extras.
Quoted source text, attributed separately from HOL analysis.